| 用升力面方法估算螺旋桨空泡 |
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| 引用本文： | 王国强,杨建民. 用升力面方法估算螺旋桨空泡[J]. 上海交通大学学报, 1993, 0(1) |
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| 作者姓名： | 王国强 杨建民 |
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| 作者单位： | 上海交通大学船舶及海洋工程系，上海交通大学船舶及海洋工程系 |
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| 摘 要： | 本文提出了用数值升力面理论求解三维空泡螺旋桨问题的准定常方法.表征螺旋桨负荷、厚度和空泡的奇点系及满足边界条件的控制点均置于拱弧面上。尾涡模型划分为过渡区和远尾流区,过渡区用圆锥螺旋面来模拟尾涡片的变形现象,远尾流区简化为桨叶数的集中等螺距梢涡和一根直线毂涡模型。空泡模型用半闭式.计算结果与实验值吻合良好。
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| 关 键 词： | 螺旋桨 升力面理论 螺旋桨激振力 汽蚀 |
Prediction of Cavity Geometry on Propellers with Lifting Surface Theory |
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| Wang Guoqiang,Yang Jianmin. Prediction of Cavity Geometry on Propellers with Lifting Surface Theory[J]. Journal of Shanghai Jiaotong University, 1993, 0(1) |
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| Authors: | Wang Guoqiang Yang Jianmin |
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| Affiliation: | Wang Guoqiang;Yang Jianmin |
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| Abstract: | The paper presents a quasi-steady method for predicting three-dimen- tional cavitation on propellers with the numerical lifting surface theory. The singularities representing loading, blade thickness and cavity of propeller and the control points are all located on the camber surface of the propeller. The tra- iling vortex wake is divided into two parts, namely, the transitional wake region and the ultimate wake region. A conical helicoid which is used to describe the deformed trailing vortex sheet in the transitional wake region and the ultimate wake region is simplified as K, blade number, concentrated helical tip vortices together with a single straigle straight line hub vortex. In addition, the semi- closed cavity model is applied in the calculation. The calculated results are com- pared with the experimental data. The agreement is satisfactory. |
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| Keywords: | propellers lifting surface theory propeller exciting force cavitation |
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